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Debian Linux Distributions

Debian is a community distribution used mostly on servers and small embedded devices. It is one of the oldest Linux distributions.

Created
9/20/2019

Debian Versions

Debian Stable

Very old packages. Only security updates. No non-free firmware (microcode updates etc).

https://statuscode.ch/2016/02/distribution-packages-considered-insecure/

License
Free, open source
Release Model
Stable release every ~2 years
Support Duration
About 5 years (3 years full support, 2 years extra LTS)
Default Desktop Environment
GNOME

Debian Testing

After about ten days packages from Unstable move to testing. Because of the ten-day delay it should be more stable than Unstable. But it's also the least secure of these three branches, because it can take ten days for the update to arrive. Simply: If a security bug is found in a package, the package's developer releases the new, updated, version. This version goes to Debian Unstable and usually is backported to Debian Stable. And after ten days it finally gets from Unstable to Testing.

Although it is called Unstable, it contains stable versions of packages (and sometimes the packages are not the latest either).

License
Free, open source
Release Model
Rolling release with feature freeze before a new Debian Stable release, lagging ~2 weeks behind Debian Sid
Support Duration
Forever
Default Desktop Environment
GNOME

Debian Unstable (Sid)

License
Free, open source
Release Model
Rolling release
Support Duration
Forever
Default Desktop Environment
GNOME